fastfetch-sys 2.43.0

A neofetch like system information tool
Documentation 
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#include "gpu.h"

#import <Metal/MTLDevice.h>
#import <IOKit/kext/KextManager.h>

#ifndef MAC_OS_VERSION_13_0
    #define MTLGPUFamilyMetal3 ((MTLGPUFamily) 5001)
#endif
#ifndef MAC_OS_X_VERSION_10_15
    #define MTLFeatureSet_macOS_GPUFamily1_v4 ((MTLFeatureSet) 10004)
    #define MTLFeatureSet_macOS_GPUFamily2_v1 ((MTLFeatureSet) 10005)
#endif

const char* ffGpuDetectDriverVersion(FFlist* gpus)
{
    if (@available(macOS 10.7, *))
    {
        NSMutableArray* arr = NSMutableArray.new;
        FF_LIST_FOR_EACH(FFGPUResult, x, *gpus)
            [arr addObject:@(x->driver.chars)];

        NSDictionary* dict = CFBridgingRelease(KextManagerCopyLoadedKextInfo((__bridge CFArrayRef)arr, (__bridge CFArrayRef)@[@"CFBundleVersion"]));
        FF_LIST_FOR_EACH(FFGPUResult, x, *gpus)
        {
            NSString* version = dict[@(x->driver.chars)][@"CFBundleVersion"];
            if (version)
            {
                ffStrbufAppendC(&x->driver, ' ');
                ffStrbufAppendS(&x->driver, version.UTF8String);
            }
        }
        return NULL;
    }
    return "Unsupported macOS version";
}

const char* ffGpuDetectMetal(FFlist* gpus)
{
    if (@available(macOS 10.13, *))
    {
        for (id<MTLDevice> device in MTLCopyAllDevices())
        {
            FFGPUResult* gpu = NULL;
            FF_LIST_FOR_EACH(FFGPUResult, x, *gpus)
            {
                if (x->deviceId == device.registryID)
                {
                    gpu = x;
                    break;
                }
            }
            if (!gpu) continue;

            #ifndef MAC_OS_X_VERSION_10_15
            if ([device supportsFeatureSet:MTLFeatureSet_macOS_GPUFamily2_v1])
                ffStrbufSetStatic(&gpu->platformApi, "Metal Feature Set 2");
            else if ([device supportsFeatureSet:MTLFeatureSet_macOS_GPUFamily1_v1])
                ffStrbufSetStatic(&gpu->platformApi, "Metal Feature Set 1");
            #else // MAC_OS_X_VERSION_10_15
            if ([device supportsFamily:MTLGPUFamilyMetal3])
                ffStrbufSetStatic(&gpu->platformApi, "Metal 3");
            else if ([device supportsFamily:MTLGPUFamilyCommon3])
                ffStrbufSetStatic(&gpu->platformApi, "Metal Common 3");
            else if ([device supportsFamily:MTLGPUFamilyCommon2])
                ffStrbufSetStatic(&gpu->platformApi, "Metal Common 2");
            else if ([device supportsFamily:MTLGPUFamilyCommon1])
                ffStrbufSetStatic(&gpu->platformApi, "Metal Common 1");

            gpu->type = device.location == MTLDeviceLocationBuiltIn ? FF_GPU_TYPE_INTEGRATED : FF_GPU_TYPE_DISCRETE;
            gpu->index = (uint32_t) device.locationNumber;

            if (device.hasUnifiedMemory && device.recommendedMaxWorkingSetSize > 0)
                gpu->shared.total = device.recommendedMaxWorkingSetSize;
            #endif
        }
        return NULL;
    }
    return "Metal API is not supported by this macOS version";
}